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Finding the Fourth Proportional to 583,919.22, 805,809.69 and 315,647.22

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Solution

The fourth proportional to 583,919.22, 805,809.69 and 315,647.22 is: 435,593.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,919.22 : 805,809.69 = 315,647.22 : x
  2. Step 2: Convert to fraction form
    583,919.22/805,809.69 = 315,647.22/x
  3. Step 3: Cross multiply
    583,919.22x = 805,809.69 × 315,647.22
  4. Step 4: Simplify right side
    583,919.22x = 254,351,588,497.56
  5. Step 5: Solve for x
    x = 254,351,588,497.56/583,919.22
  6. Step 6: Final answer
    x = 435,593.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.